This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A017017 #29 Oct 17 2023 05:06:30 %S A017017 3,10,17,24,31,38,45,52,59,66,73,80,87,94,101,108,115,122,129,136,143, %T A017017 150,157,164,171,178,185,192,199,206,213,220,227,234,241,248,255,262, %U A017017 269,276,283,290,297,304,311,318,325,332,339,346,353,360,367,374,381 %N A017017 a(n) = 7*n + 3. %H A017017 Vincenzo Librandi, <a href="/A017017/b017017.txt">Table of n, a(n) for n = 0..5000</a> %H A017017 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a> %H A017017 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %F A017017 From _G. C. Greubel_, Oct 17 2023: (Start) %F A017017 G.f.: (3 + 4*x)/(1 - x)^2. %F A017017 E.g.f.: (3 + 7*x)*exp(x). (End) %p A017017 A017017:=n->7*n + 3; seq(A017017(n), n=0..100); # _Wesley Ivan Hurt_, Feb 24 2014 %t A017017 Range[3, 600, 7] (* _Vladimir Joseph Stephan Orlovsky_, May 27 2011 *) %o A017017 (Magma) [7*n+3: n in [0..60]]; // _Vincenzo Librandi_, May 28 2011 %o A017017 (PARI) a(n)=7*n+3 \\ _Charles R Greathouse IV_, Jul 02 2013 %o A017017 (SageMath) [7*n+3 for n in range(80)] # _G. C. Greubel_, Oct 17 2023 %Y A017017 Cf. A008589, A016993, A017005. %K A017017 nonn,easy %O A017017 0,1 %A A017017 _N. J. A. Sloane_